The late, great Anna Piaggi once referred to London-based milliner Stephen Jones’ fantastical creations as “the most beautiful hats in the world.” He’s collaborated with everyone from Vivienne Westwood to Marc Jacobs for Louis Vuitton and outfitted the likes of Marilyn Manson and Beyoncé with his thrilling toppers. Here, he lets us in on the items he just has to have.